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Renesas R5F101MFAFB#V0
- Part No.:
- R5F101MFAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFB#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,807
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Product details
Overview
R5F101MFAFB#V0 from Renesas is a 80-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with no data flash, 64 KB code flash, 4 KB RAM, and industrial-grade -40°C to +85°C operation. It features ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 32 MHz max CPU speed (41 DMIPS), 10-bit 26-channel ADC, and integrated real-time clock with calendar function - deployed in battery-powered industrial sensors and smart metering front-ends.
For engineers reviewing the R5F101MFAFB#V0 datasheet, R5F101MFAFB#V0 pinout, R5F101MFAFB#V0 application, or R5F101MFAFB#V0 equivalent, key selection criteria include its data-flash-free configuration, LFQFP-80 package with 0.5 mm pitch, 64 KB flash/4 KB RAM memory map, RTC+LVD ultra-low-power retention mode, and support for LIN-bus UART and background data flash programming.
Technical Context
The R5F101MFAFB#V0 implements the RL78 CPU core with 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory architecture separates 64 KB on-chip code flash (1 KB block size, security-protected erase/write) from 4 KB SRAM, with no embedded data flash - distinguishing it from R5F100x variants.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, one calendar-capable real-time clock, one watchdog timer, up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and three serial interface types: CSI (SPI-like), UART/LIN, and I²C - all configurable across multiple channels without shared resource conflict.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 μs) |
| Max Operating Frequency | 32 MHz (41 DMIPS), supported by high-accuracy ±1.0% on-chip oscillator (1.8–5.5 V, –20 to +85°C) |
| Memory Configuration | 64 KB code flash (1 KB blocks, flash shield window & boot swap), 4 KB RAM, zero data flash |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Serial Interfaces | Up to 8 CSI channels, 4 UART/LIN channels (LIN-compliant), and 10 I²C/Simplified I²C channels |
| Operating Voltage & Temp | 1.6–5.5 V supply; industrial-grade –40°C to +85°C ambient (D-grade marking) |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial clock output/input for CSI or I²C master/slave |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | Shared serial input path enabling tool communication, peripheral data reception, and bidirectional I²C bus |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI Output / UART TX / Debug TX / I²C Data | Configurable as SPI output, UART transmit, debug interface, or open-drain I²C data line |
| P13/INTP0/ANI3 | Port 13 / External Interrupt 0 / Analog Input 3 | Dual-role pin for edge-triggered interrupt wake-up or analog signal acquisition into ADC |
| P14/INTP1/ANI4 | Port 14 / External Interrupt 1 / Analog Input 4 | Supports low-latency system wake-up from STOP/HALT modes or analog sensing with programmable trigger |
| P20/ANI0/AVREFP | Port 20 / Analog Input 0 / ADC Reference Positive | Primary analog input channel that doubles as positive reference voltage source for ADC measurements |
| P21/ANI1/AVREFM | Port 21 / Analog Input 1 / ADC Reference Negative | Secondary analog input serving as negative reference for differential ADC conversions |
| P22/ANI2 | Port 22 / Analog Input 2 | Dedicated analog input with selectable gain and sampling control for precision sensor interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active enables multi-year battery life in remote monitoring nodes |
| On-chip real-time clock | Calendar function (99-year range), alarm, and clock correction eliminates external RTC IC and reduces BOM cost |
| Background data flash programming | Not applicable - R5F101MFAFB#V0 has no data flash; code flash self-programming supports firmware updates in-field |
| Multi-protocol serial support | Hardware-per-channel independence allows concurrent CSI, UART/LIN, and I²C operation without software arbitration |
| Different-potential I/O interface | N-ch open-drain ports tolerate 1.8/2.5/3.0 V logic levels, enabling direct connection to mixed-voltage peripherals |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold ensures reliable brown-out protection across wide VDD range |
Applications
| Industrial Sensor Node | Smart Energy Meter Front-End |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/pressure sensor collecting data every 10 seconds and transmitting via sub-GHz RF link. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, RTC-timed wake-up, low-power sleep management, and UART-based RF module command interface. Use Value: 0.57 μA STOP mode extends 2× AA battery life beyond 5 years; integrated 10-bit ADC and temperature sensor eliminate external signal conditioning. |
Use Scenario: AC mains-powered electricity meter using shunt/CT sensing, with tamper detection, tariff switching, and optical/IR communication. IC Role / Device Role / Timing Role: Front-end acquisition MCU handling analog metrology inputs, RTC-based billing intervals, LIN-bus communication with display module, and secure firmware updates. Use Value: Calendar-capable RTC enables accurate time-of-use billing; LIN-compliant UART simplifies inter-module communication without CAN transceiver cost. |
| Home Appliance Control Unit | Factory Automation I/O Module |
|
Use Scenario: Washing machine main board managing motor control, water valve actuation, user interface, and safety interlocks. IC Role / Device Role / Timing Role: System supervisor coordinating PWM motor drivers, ADC-based current sensing, keypad scanning, buzzer output, and fault logging to flash. Use Value: 64 KB flash accommodates complex state-machine logic and safety-certified firmware; 26-channel ADC supports simultaneous motor phase, temp, and voltage monitoring. |
Use Scenario: DIN-rail mounted digital I/O expansion module converting Modbus RTU commands to isolated relay/digital outputs and status inputs. IC Role / Device Role / Timing Role: Protocol bridge MCU running Modbus stack, managing isolated GPIO, performing CRC validation, and maintaining watchdog supervision. Use Value: 8× 16-bit timers enable precise pulse-width modulation for LED indicators and timing-critical isolation driver control; UART/LIN hardware offloads protocol framing overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MFAFB#V0 | Same package and pinout; includes 8 KB data flash and flash library RAM usage at FF300H | Required where field firmware updates or parameter storage (e.g., calibration data) must persist independently of code flash | Select when non-volatile parameter retention or background data rewriting is mandatory |
| R5F101MGAFB#V0 | Same footprint, 80-pin LFQFP; differs in memory: 96 KB flash / 8 KB RAM / no data flash | Suitable for more complex control algorithms or larger protocol stacks requiring >64 KB code space | Choose when additional flash/RAM headroom is needed without changing PCB layout |
Compared with R5F100MFAFB#V0, the R5F101MFAFB#V0 trades data flash for lower cost and simplified flash management, while R5F101MGAFB#V0 offers scalable memory headroom - both retain identical peripheral sets, power profiles, and industrial temperature rating.
Availability
R5F101MFAFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter front-ends, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F101MFAFB#V0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family delivers true low-power performance for general-purpose embedded control, targeting cost-sensitive industrial, home appliance, and sensor applications where energy efficiency and peripheral integration are critical.
FAQ
What is the flash memory configuration of the R5F101MFAFB#V0?
The R5F101MFAFB#V0 contains 64 KB of on-chip code flash memory organized in 1 KB blocks, with flash shield window and boot swap functionality for secure firmware updates. It does not include any data flash memory - unlike R5F100x variants - making it optimized for applications where parameter storage is handled externally or in code flash.
Does the R5F101MFAFB#V0 support LIN bus communication?
Yes, the R5F101MFAFB#V0 supports LIN bus communication through its UART peripheral channels, which are explicitly LIN-bus compliant per the RL78/G13 datasheet. Up to four UART channels can be configured for LIN master or slave operation, including support for LIN 2.x frame formatting and checksum calculation in hardware.
What is the operating temperature range for the R5F101MFAFB#V0?
The R5F101MFAFB#V0 is rated for industrial operation from –40°C to +85°C, indicated by the 'D' suffix in its product family designation. This specification is validated across the full 1.6–5.5 V supply range and applies to all embedded peripherals, timers, ADC, and RTC functions without derating.
Can the R5F101MFAFB#V0 operate from a 1.8 V supply?
Yes, the R5F101MFAFB#V0 supports operation down to 1.6 V, so 1.8 V is fully within its specified VDD range. At 1.8 V, the maximum operating frequency is reduced per the datasheet's voltage-frequency curve, but all core functions - including RTC, LVD, and 10-bit ADC - remain operational with guaranteed timing and accuracy.
How many analog input channels does the R5F101MFAFB#V0 provide?
The R5F101MFAFB#V0 provides up to 26 analog input channels for its 10-bit successive-approximation ADC. These channels include dedicated pins like P20/ANI0 and multiplexed port pins such as P13/ANI3 and P14/ANI4, with internal 1.45 V reference and temperature sensor accessible via ANI23.
Is the R5F101MFAFB#V0 pin-compatible with other RL78/G13 80-pin variants?
Yes, the R5F101MFAFB#V0 shares identical 80-pin LFQFP-0.5mm mechanical footprint and pin assignment with all other RL78/G13 devices in the same package variant (e.g., R5F100MFAFB#V0, R5F101MGAFB#V0), enabling drop-in replacement where memory and feature requirements align - verified by Renesas' official pin compatibility documentation.
R5F101MFAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101MFAFB#V0 FAQ
1.How can I place an order for R5F101MFAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFB#V0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F101MFAFB#V0 reliable?
The price and inventory of R5F101MFAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MFAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MFAFB#V0?
R5F101MFAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFB#V0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F101MFAFB#V0?
For technical support, including R5F101MFAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFB#V0 requirements.
6.How does Aetrix verify that R5F101MFAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFB#V0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F101MFAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFB#V0?
All R5F101MFAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFB#V0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F101MFAFB#V0 part is unused and in its original packaging.
Return procedure for R5F101MFAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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